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XS230-RACE H/L – SBC

$1,049.00

Dominate the field with our fully assembled XS230-Race H/L high performance SBC cylinder heads! These high flow AC4B castings feature 100% CNC ported intake/exhaust runners & combustion chambers, high performance competition 5 angle valve job and professional assembly using high quality valve train components. Capable of handling up to .650″ lift cams, these heads are sure to give you an edge over the competition.

.650″ Maximum Lift / Max RPM 6300-6500

WARNING: Cancer and Reproductive Harm –  www.p65warnings.ca.gov

 

SOLD INDIVIDUALLY

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CNC Ported Intake Ports

CNC Ported Exhaust Ports

CNC Ported Combustion Chambers

High Performance Competition 5-angle Valve Job

Ductile Iron Intake & Exhaust Valve Seats

11/32″ Bronze Valve Guides

11/32″ Stainless Steel Intake Valves, 2.020″ x 5.010″ Overall Length, .250″ Tip

11/32″ Stainless Steel Exhaust Valves, 1.600″ x 5.010″ Overall Length, .250″ Tip

1.460″ O.D. Solid Hydraulic Roller Dual Valve Spring, 155 lbs Seat Pressure, .650″ Maximum Lift, 1.100″ Coil Bind

7° Chromoly Retainers, 1.430″ O.D. x 1.050″ I.D. x .685″ I.D.

7° Valve Keepers

Valve Spring Locator Cups, 1.460″ O.D.

7/16″ Rocker Studs

Adjustable 5/16″ Guide Plates

Viton Valve Seals

 

Weight N/A
Dimensions N/A
CNC Ported

Yes

Material

AC4B

Combustion Chamber Size

70cc

Intake Port Volume

230cc

Exhaust Port Volume

90cc

Intake Valve Diameter

2.020"

Exhaust Valve Diameter

1.600"

Intake Port Location

Stock

Intake Port Shape

Rectangle

Exhaust Port Location

Stock

Exhaust Port Shape

Square

Valve Angle

23°

Valve Guide Length

2.100"

Valve Stem Diameter

11/32"

Valve Cover Bolt Pattern

Perimeter & Center

Spark Plug Angle

Angled, Straight

Spark Plug Dimensions

14mm x 3/4" w/ Flat Seat

Quantity

Sold Individually

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